Lubricated clutch and similar device.



L. 1). ROWELL. LUBBIOATED CLUTCH AND SIMILARPEVIGE.

APPLIOATION FILED DBO. 15, 1905.

Patented Apr.22, 1913.

UNITED i srarns PATENT oration.

LEWIS D. ROWELL, 0F MILWAUKEE, WISGONSIN, ASSIGNOR T0 CUTLERrHAMMERCLUTCH COMPANY, OF MILWAUKEE, WISCONSIN, A CORPQRATION OF WISCONSIN.

LUBRIOATED CLUTCH ANDSIMIIIAR DEVICE.

Specification of Letters Intent.

Patented Apr. 22, 1913.

Application filed December 15, 1905. Serial No. 291,949.

l Ernst ded which contains an oil bath for luheating the faces of theclutch members. 1 a t has been found that where the casing is carried byone of the members and incloses the other member, it beingrotatcd withthe former member, the 011 tends to .leak through the joint between saidcasing and the latter member. a It is the object of my invention toprovide means for preventing the oil from leaking in this way.

Although my invention is especially applicable to clutches, it will "beunderstood that it may be used in various relations, and, furthermore,that it may be applied to clutches of any form.

In order to explain my invention I shall show and describe particularlya magnetic clutch which has been developed in practice to embody thesame.

The accompanying drawing contains a partial sectional view of theclutch.

I shall merely describe such features of the clutch as shall benecessary to set forth my invention.

The clutch may be provided with a mag netmember 1 and an armature memberThese members mayhave the same general construction. as thatillustratedin the putout of August 4th, 1905, No. 786,411. The magnet member 1 maybe mounted upon a hub 3 which is referably fixed upon a driving shaft 4.Th mounted upon a springydisk 5 which will yield sufficiently to permitthe same to move into contact with the magnet member 1. The disk 5 maybe mounted upon a hub 6 which is preferably fixed upon a driven shaft 7.

The driving shaft 4, the hub 3 and the magnet member 1, preferablyconstitute the e armature member may be driving member of the clutch,and the driven shaft 7, the hub 6, the disk 5, and the armature member2, preferably constitute the driven member thereof. The driving shaftand the driven shaft are preferably arranged in alinement in ahorizontal position, the same being journalcd in suitable bearings. Thedriving shaft 4: may be connected in anysuitablc way to a source ofpower or prime mover, and the driven shaft 7 may be connected in anysuitable way to the machinery or load to which power is to betransmitted.

In order to connect the members of the clutch so as to transmit powerfrom the prime mover to the load, the magnet 1nem'- nor may bemagnetized by energizing its winding to attract the armature memberthereto.

The casing 8 which may be carried by the magnet member, is preferablyfastened thereto by means of bolts 9. The casing extends over thearmature member 2, and is preferably provided with annular plates 9", 9,into which extends the hub 6, and between which may be clamped a packing10, thereby forming a dust proof joint. The casing serves to contain anoil bath 11 and also to exclude dust and dirt. The oil bath provides afilm of oil between the magnet member and the. armature member. \Vhenthe magnet member is magnetized to attract the armature member thereto,the oil film serves to lubricate the faces of these members whilerelative movement takes place between the same, and it also prevents thearmature member from being brought into immediate mechanical contactwith the magnet menu bar, thereby preventing the driving memher fromstarting the driven member too suddenly. These results are especiallyadvantageous where the clutch operates upon the same principles as theclutch which is set forth in the aforesaid patent.

The casing 8 is preferably provided with apertures through which the oilor lubricantmay be inserted and removed, and said apertures arepreferabl provided with plugs 12 which are threa ed into thesamc.

The hub 6 is referably provided with an annular trougi or channel 13which is arranged adjacent to the disk 5 and concentric with the axis ofthe clutch, one side thereof preferably being formed by the disk and theother by a flange having an inprojects over the same.

, ing 8 rotates with the driving member. the

oil llwill be carried toward the eriphery thereof by centrifugal force.

quence, the oil at the top of the casing cannot run down the insidethereoi to the joint between the casing and the hub 6. W'hilc the drivenmember is at rest the oil .which accumulates at the top thereof will rundown the upper part to the trough 13. It will then flow around thetrough to the lower part of the smile, and thence pass on down the rearside of the lower part of the disk to the bottom of the casing. Thetrough thus serves to keep the oil from running over the upper portionof the hub' 6 to the joint between said ring and said hub. and thenleaking through the same. The flange 14 restricts in volume the flowingoil which runs into the trough 13, since the passage between theflangeaud the disk 5 is quite narrow. In consequence. the oil'canuot runinto the'trough so rapidly as to flow over the flange at the s'idethereof and thence pass onto the hub t3. \Vhen the driven member isrotating. the oil on the inclined peripheral face of the'flange at theside of the trough 13 carried inwardly and then thrown toward the disk 5by centrifugal force. r \T It will, of course, be understood that myinvention is applicable to many purposes and thatthe same may assumevarious forms.

Having thus described my invention what I claim and desire to secure byLetters Patent'is: J

1. In combination; a hollow member adapted to contain a lubricatingbath. a member within said hollow member, said members having a jointpermittin relative rotation thereof. one of said mem ers having a troughor channel for receiving downfiowing lubricant to convey the same awayvfrom the oint and means carried by the other member restricting the.volume of lubricant enteringthe trough or channel but permitting adisc'hargeof the lubricant from the trough or channel intothelowerportion of said hollow member. andinsuring against the lubricantso discharged reaching 'the joint. 2..'In combix'lationff a holl oivamember adapted to eontaiira' lubricatingjfbath; a

n consemembe within said hollowmemberi s aid membe s having a joint.permitting relative down-flowing ilubricant. to convey the same awayfrom the joint and into the; lower portion of said hollow member and aflangecar v ried by the other member for restricting the -volume oflubricant. entering sald. trough or channel. said flange permitting adischarge of the lubricant from the trough or channel into said hollow.member, and directing any lubricant discharged thereon away from thejoint.

3. In combination, a hollow member arranged to-contaln an 011 bath. amember within said hollow member, said members having a joint permittingrelative rotation thereof and one of said members being provided withatrough or channel for receiving down-flowing lubricant and conveyingthe, same away from the joint into the lower part of said hollow, memberand an annular flange carried bythe other member and surroundmg thetrough or channel to restrict the volumeof lubricant entering the same,said flange having its inner faeeinclmed to convey any lubricantdischarged from the trough or channel thereon away from'the jointinto'said hollow m'ember. i

4. In combination, a hollow member arranged to contain an oil bath. amember within said hollow member, said members having a joititpermitting relative rotation thereof and one of said members having atrough or channel for receiving lubricant flowmg'down the same and cansonv the other member tending to convey the oil fiowing down said lattermember into the trough or channel and restricting the vblumie oflubricant entering the same but; permitting a discharge of all lubricantfromlthe trough.

or channel into thehollowtinember.

5. In wmbinatiomfa. hollow membelia member, within the' ame, said members having a joint. between the some permitting rela tive rotation thereofarid, one ofsaid members having a trdugh'or, channel andl an am.

nular flange on the-othermeniheflsurtiouiid I 7 ing the trough orchanneland restricting the volume of lubricantemeriagtae siting-"the;outer face of sai'clIflangelbemg. inclined 10- ward the troughjoi',channel and; the

face thereofbeing inolinlitl a aisehar ea joint, to convey allldhbi-manthereon away from'the join 6. In combination, a ranged to contain anoil?bathfla-pinemhe within said" hollow meinber,'said1intnbe.

being journaled upon a horizontal axis'and fhavmg a oint betweenthelsame tor pertmtting relative movement 'thereof,"an annular trough orchannel provided onjone offsaid u nbers to receive lubnoant 'jflowingdown; the same and convey itawjay from. saidyolnt,

I ner. i

saidflange being arranged to surround said trough or channel to restrictthe volume o't lubricant entering the same to prevent an over-flowthereof.

7 In combination, a hollow member arranged to contain an oil bath, amember within said hollow member, said. members being journaled upon ahorizontal axis and having a joint betweenthe same for permit tingrelative movement thereof, an annular trough or channel provided on oneof said members to receive lubricant flowing down the same and convey'it away from said joint, anannular flange on the other of said membersarranged to convey the lubricant flowjoint.

ing down the same into said trough or channel, said flange beingarrangedto surround said trough or channel to restrict the volume of lubricantentering the same and having its inner face inclined to convey anylubricant discharged thereon away from said 8. In a clutch, incombination, two concentric cl'utch members, a casing fixed to one ofsaid members and inclosing the other member, a joint between said casingand said latter member permittingrelativc rotation thereof, said casingand said latter member having overlapping annular llanges inclosing saidjoint, the inner flange being provided with a trough or channel arrangedto receive all lubricant flowing between said flanges and to convey thesame to the lower portion of said casing and the outer flangerestricting the volume of lubricant entering the trough or channel anddirecting any lubricant discharged thereon trom the trough or channelaway from said joint.

tk- In emnbination, a driving member adapted to rotate continuously, adriven member adapted to stand at rest, a casing carried by said drivingmember and havin a joint formed between the same and sai driven member,said casing being adapted to contain an oil bath, an annular trough orchannel carried by said driven member and adaptedto catch the oilrunning down the same to prevent said oil from reaching said joint, andmeans for restricting the volume of oil flowing in said channel.

10. In combination, a driving member adapted to rotate continuously, adriven member adapted to stand at rest, a casing carried by said drivingmember and having a joint formed between the same and said drivenmember, said casing being adapted to contain an oil bath, an annulartrough or channel carried by said driven member and adapted to catch theoil running down the same to prevent said oil from reaching saidGajbint, and an annular flange carried by said casing and projectingover said trough, said flange being adapted to restrict the amount ofoil that may flow into said trough.

11. In combination, a driving member adapted to rotate continuously, adriven membeadapted to stand at rest, said driving member and saiddriven member being carried by horizontal alining shafts, :1 cas ingcarried by said driving member and surrounding said driven member, saidcasin being adapted to contain an oil bath anc having a joint formedbetween the same and said driven member, an annular channel or troughcarried by said driven member and adapted to catch the oil flowing downsaid driven member to conduct it to the lower part of said driven memberso as to prevent it from reaching said joint. and means for restrictingthe amount of oil that may flow into said trough or channel.

'12. In combiimtion, a driving shaft, a driven member mounted thereonand adapted to rotate continuously. a driven shaft, a hub mounted uponsaid driven shaft, a driven member carried by said hub, a casing carriedby said driving member and surrounding said drivcn member, said casingbeing adapted to contain an oil bath and havin a joint formed betweenthe same and said driven member, an annular trough or channel carried bysaid hub and adapted-"t0 catch the oil rmming down said driven memberfrom the upper portion thereof to conduct it to the lower portion ofsaid driven member so as to prevent it from running over the top of saidhub to said joint, and means for restricting the amount of oil that mayflow into said trough.

13. In combination, a: driving shaft, a driven member mounted ,thereonand adapt ed to rotate continuously, a driven shaft, a hub mounted uponsaid driven shaft, a driven member carried by said hub, a casing carriedby said driving member and surrounding said drivcn member, said casingbeing adapted to contain anoil bath and having a joint formed betweenthe same and the driven member, an annular channel or trough carried bysaid hub and adapted to catch the oil rmming down said driven memberfrom the upper portion thereof to conduct it to the lower portion ofsaid driven member so as to prevent it from running over the top of saidhub to said joint, and a flange extcndingover said trough and adapted torestrict the amount of oil that mayuflow into the same.

14. In a magnet'c clutch, in con'ibination,

a driving member, a driven member, each member having a face adapted toengage the lw ot' the other member, said lllGlllbOlS :being journaled inaxial alinement, a casing carried bythe driving member and extendingover the periphery and the back of said driven member, said casing andsaid driven &

ingtjoint between the same where the driven member passes through saidcasing, said casing being adapted to contain an oil bath, an annulartrough arranged upon the back of said driven member inside of saidcasing, and adapted to catch the oil flowing down the upper portion ofthe back of said driven .incmber and convey it to the bottom portion ofthe back of said driven member so as not to allow said oil to reach saidjoint.

15. In a magnetic clutch, incombinatiorna driving member, a drivenmember, each member having a face adapted to engage the face of theother member, said members being journaled in axial alinement, a casingcarried by the driving member and elifnding over the periphery and theback 0 said driven member, said casing and said driven member beingprovided with a suitable hearing joint between the same where the drivenmember passes through said casing, said casing being adapted to'containan oil bath, an. annular trough arranged upon the back' of said drivenmember concentrically with the axis thereof, and an annularflangejformed upon said casing and extending over'said trough to a pointnear the 'back of'said member passes through said casing, said cassaiddriven member concentric with the axis thereof, and having one wallformed bya flange, the periphery of which is inclined, and a flangeformed "upon said casing and extending over said trough to a the back ofsaid driven member.

In witness whereoflt I have hereunto subnesses.

LEWIS D. ROWELL.

Witnesses:

WALTER E; SARGEN J. F, HAWKINS.

member being provided with a suitable bearing joint between the samewhere the driven ing being adapted to contain-an oil bath, an annulartrough arranged upon theback of point near scribed my name in thepresence of two wit-

